filter anyOf and oneOf alternative

[animeshsahoo1]

The anyof and oneof error handlers now filter alternatives based on the instance's properties. For object instances, an alternative is excluded from the error report if none of its declared properties exist on the instance (Rule 1), or if none of the instance's properties pass validation in that alternative (Rule 2). For non-object instances, the original type-keyword filtering is done.

fixes #175

[animeshsahoo1]

hi @jdesrosiers I have implemented what we discussed about, I tried to not add anything unnecessary but if there is need of changes let me know, I made sure to run the linting and tests as well.

[jdesrosiers]

Please add tests. They need to cover all the edge cases we discussed and more if you can think of them.

[animeshsahoo1]

I did run it on tests we talk about but I was unsure if I had to add the code for that, I will add it soon.

[animeshsahoo1]

I have added the test case for matchcount=0 for oneOf and anyOf test cases that were discussed, I tried to think of a failing case but didn't really find any let me know if I could add any other test case